If you are in the market for a GPS, AND you need a depth gauge, you are best off buying a combo GPS / fish finder. On my last boat I had a Lowrance 3.5" combo unit (M68 C / Smap or something like that) that I paid $400 for and worked great. It came with detailed charts for the entire US. For my current boat I bought a similar model with a bigger screen. I paid $600 or so for it. It has inputs and outputs so I could connect my DSC VHF to it.
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY
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